Machine for casting stereotype-plates.



I H. F. BBGHMAN. MACHINE FOR CASTING STEREOTYPE PLATES.

APPLICATION FILED DBO.5,1907.

904,748. Patented Nov. 24, 1 908.

2 SHEETS-SHEET 1.

y w, dill/(Lu i4! V attoumngs H. F. BECHMAN. MACHINE FOR CASTING STEREOTYPE PLATES.

APPLICATION FILED DEO.6,1907.

Patented Nov, 24, 1908.

'2 SHEETS-SHEET 2.

I no. 904,748,

UNITED surges PATENT OFFICE.

HENRY F. BECHMAN, OF BATTLE GREEK, MICHIGAN, ASSIGN OR TO DUPLEX PRINTING PRESS COMPANY, A CORPORATION OF MICHIGAN.

MACHINE FOR CASTING STEREOTYPE-PLATES.

To all whom it concern:

Be it known that I, HENRY F. BEOHMAN, of Battle Creek, in the county of Calhoun and State of Michigan, have invented certa n new and useful Improvements in Machines for Casting Stereotype-Plates; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification. This invention is a novel apparatus or machine for casting stereotype plates, and is particularly designed for casting plates which are substantially complete cylinders and adapted to surround the surface of the plate cylinders; and it is especially adapted for casting single-page tubular plates, in which a'single page of newspaper size will surround the plate cylinders, such as are used in connection with the rotary printing machine shown in my Patents No. 867,280

and N 0. 867,231, dated October 1, 1907. The

present invention, however, is also adapted or casting tubular plates of larger size, and it may also be used for casting other forms of plates, if desired.

The invention is summarized in the appended claims, and will be clearly understood from the following description of the machine illustrated in the accompanying drawings which show a practical, and at present the preferred, form of the invention.

In the sald drawingsFigure l is a side elevation of the apparatus showing, in full lines, the parts in closed position ready for casting a plate, and showing the cope and core in open position in dotted lines. Fig. 2 is a plan view of Fig. 1. Fig. 3 is a detail view of the core removed. Fig. 4 is a front elevation of the machine, with the core in position and the cope opened. Fig. 5 is a section on line 5-5, Fig. 4, looking downward. Fig.6 is an enlarged detail view of the latching device. Fig. 7 is an enlarged detail sectional view showing the matrixholder in position between the drag and core.

The machine embodies a drag 1, which is.

preferably mounted in vertical position upon a supporting frame, composed of side pieces 7 and base plate 7. This drag has a semi-circular recess in its front face correspendin in contour to one-half of the cylindricafplate to be cast in the machine.

The cone 1, is cylindrical in cross-section and corresponds in diameter to that of the Specification of Letters ,Patent. Application filed December 5, 1907. Serial No. 405,204.

Patented Nov. 24', 1908.

cylinder to which the plates are to be attached. The cylindrical part of this core equals the length of the plates to be cast and has a circumferential flange 2* which forms the bottom of the mold during the casting operations.

The core is provided at its lower end with trunnions 2 upon which are mounted roll- .ers 2, that rest upon the upper edges of the side pieces 7; and below these trunnions and in axial alinement with the core 2 and rigidly connected therewith is a weight or counter-balance 2, which is calculated,to

practically counter-balance the weight of the core upon the trunnions and thus enable the core to be readily swung to either its vertical or inclined position. The core is how ever prevented from running oh the ways on pieces 7, and is guided in its movement's to and from the drag, by means ofarms 2 which are rigidly fastened to the trunnions or lower part of core, and may be cast thhrewith, and are provided with pins 2,

which may be provided with rollers and engage curved guideslots 7 in the side pieces 7, and not only limit the movement of the core, but cause it to swing to an inclined position when it is pulled away from the drag, and to assume a vertical position when it 1s moved toward the drag.

The cylindrical part of the core is rovided opposite the drag with a matrix ho der 2, to which the edges of the matrix may be secured while the core is in lowered position, the matrix surrounding the core (and not being shown), and when the core is moved to its upright position, the matrix holder engages a groove 1 in the inner face of the drag, (see Figs. 2 and 7 Hinged to one side of the drag l is a cope 3, which has a semi-circular recess on its inner face correspondingwith the exterior surface of core 2 but slightly greater in diameter and adapted, when the core is in position against the drag, to be closed against the drag and surround the core, as indicated in Fig. 2, the space between the cope and drag and the interposed core forming an annular casting chamber into which metal can be poured through a gate 1 at the top of the drug. The upper end of the core is pref erably beveled as at 2 to, facilitate pouring of the metal into the mold; and it may be provided with a handle 9. to facilitate raising or lowering of the core.

. tion indicated in face of the core.

The cope 3 may be fastened when closed by any suitable means. As shown it has a pin 3* on its free ed e, which is-adapted to be engaged by a hoo 4 on a slide 4E, which is supported upon a pin 1, attached to the drag, and upon an eccentric oattached to a pin or stub shaft 1 having a handle 5* as shown. The pin 1 may be supported by a bracket 5 attached to the drag, said bracket serving as a giiide to prevent lateral displacement of the sliding catch.

'When the arm 5 is thrown in its uppermost position, as shown in Fig. 6, catch 45 will be raised clear of pin 3 and the cope can be readily opened. When the cope is closed the arm 5 is thrown into the posifuil lines in Fig. l, and first brings the catch a into engagement with pin 3 and then draws the catch back- Ward ciosing the cope securely against the drag.

The operation of the machine is obvious. When a plate is tobe cast, the cope is thrown open and the core lowered to the position shown in dotted lines, Fig. 1; then the matrix, not shown, is wrapped around the core and seciired by the holder 2 The core is then swung up into the cavity of the drag, and the cope closed around the core and secured to the drag, as described. The flange 2 on the bottom of the core makes a tight joint with the opposed surfaces of the drag and core, and closes the bottom of the mold formed by thespace between the inner faces oi" the drag and cope and the external The metal is then poured into the mold in the usual manner. Then the cope is opened and the core with the cy lindrical pirate thereon is removed, the znatri-x hoider iinfastened, and the matrix removed; then the plate may be slipped endwise oii' of the core.

it is obvious that cylindrical tubular plates of any desired diameter and length may be formed in such machines, and it is also practical if desired, to cast a pluralit of parti-cylindric plates in such a machine by applying more than one matrix holder to the core.

Having described inns-n. claim as new and desire to scour Patent is:

l. A machine for casting stereotype plates, comprising a drag, a cone, and a tilt-able core adapted to be between the cop and drag.

2. A stereotype casting. machine, comprising a drag, a cope, and a swinging core interposed between the drag and cope.

3. ii stereotype casting machine, comprising a drag, a tiltable core, and a cope.

4. in combination, a stationary drag, a cope and a tiltable core.

5. In combination, astationary swinging cope and a tilting core.

rrame having guide slots,

scenes 6. In combination, a drag having a cast-.. ing recess, a tiltabie cdre movable to' and from the drag, and a cope adapted to inclose the exposed part of the core in the drag.

7. in combination, a drag, and a tiltable core, movable to and from the drag, and a hinged cope adapted to inclose the exposed part or" the core in the drag.

8. A stereotype casting machine comprising a fixed drag, a tiltable core and a swingmg core.

9. stereotype castin machine, comprising drag, and a cope hinged thereto having opposed semi-cylindric recesses, and a cylindrical tiitable core interposed between the drag and cope.

10. In combination, a base frame, a drag mounted thereon, a movable tiltable core, a cope hinged to the drag,'and means for 1ocking the cope.

11. In combination, a base frame, a drag fixedly mounted thereon, a tiltable core movably mounted upon the base, a cope hinged to the drag, and means for locking the co e.

12, in combination, a drag, a cope, an a movable counter-balanced core.

13. In combination, a base, a drag, atiltingcounter-baianced core, and a swinging cope.

14.. In combination, a base,a dra ,a tilting' counter-balanced core nriounted on the Ease, and a swinging cope hinged to the rag,

15. in combination, a drag, a cope, a tiltable hook bar slidably mounted on the drag and adapted to engage the cope, and an eccentric on the dra for operating said hook.

16. In combination, a time, a cope hinged thereto, a hook bar tiltabl y and slidably mounted on the drag and adapted to engage the cope, and an eccentric and lever on the drag engaging and operating said hook bar.

17. In a stereotype casting machine, the combination of a drag, a cope, a supper-tin frame, a movable core mounted on sai frame andarms connected with said core engaging guide slots in the frame. 7

18. In a stereot pe casting machine, thecombination of a rag, a cope, a supporting a tilting core mounted on said frame, and arms connected with said core engaging said guide slots to cause said core to swlng from a vertical to a horizontal position as it moves.

19. The combination of a frame having side pieces provided with angular slots, a drag mounted on the frame a core provided th rollers supported on the side pieces of the frame, and arms connected to the core and engaging said slots to cause the core tiit as it moves.

29. The combination of a frame 'having sidepieces provided with guide slots, a drag mounted on the frame, a tiltabie core supported onthe side pieces of the frame, and

drag in closed position.

21; In comb nation, a frame, a drag, a cope, .a core mo'vablyf mountedtuon the frame, arms attached to the core anc 'engagand inclose the eoi-e,.

ing uide slots in the fiame to cause the core mu 6 as it moves away from the" drag, an'd a cope adapted tq'be closeda I means for-locking the cope in'closed 'position.

422. In combination; a frame, adrag mount- 6d thereomfa cope-,fa core movably mounted npon the 'frame',-1nean's'for causlhg-the core to tilt. asjit moves away from" the drag, a

cope hinged to the drag and adapted to be henthe latter-"is i-n feasting-position; and" eans for locf 1rlg the cope in'eiosed posivided 'With a eo unter-balance, arms attached losed thereagainst to surround the; core l ri'combinatioma fram'e a' drag mopnt' ed ,thereon, a' cophinged to the drag; a-core movably-molinte l upon the frame and pr ogainst the .drag' to the core and engaging slots in the frame causing the core to tilt as it moves away fromthe dra a cope hinged to the drag and adapted to he closed thereagainst to surround the core when the latter is in casting position, and means forlocking the cone in closed position.

1 24. An apparatus for casting cylindrical stereotype plates comprising, a box,- a't-iltable cylindrical core ,removable' from the box,

- and means'for securingthe core in the box.

25. An apparatus 101' casting eylindric tubular platesfcbmprising an openable box having, a cylindric bore,'and 'a tiltable eylin'- d'ric core within the;box.

26., A box for. casting cylindrical la tes' comprising aging, at cope, and 'a -ti table cylindri'c'a core adapted t0 be inclosed in thebom In testimony that.;I,.- clai m-; the --.f oregoi'iig as myyo'wn, I afiix my signature in presence of two witnesses. 

